]> git.ipfire.org Git - thirdparty/iw.git/blame - phy.c
iw: add support for NL80211_CMD_DEL_STATION event
[thirdparty/iw.git] / phy.c
CommitLineData
379f8397 1#include <stdbool.h>
0f55e0b8 2#include <errno.h>
0f55e0b8 3#include <net/if.h>
d0260390 4#include <strings.h>
0f55e0b8
JB
5
6#include <netlink/genl/genl.h>
7#include <netlink/genl/family.h>
8#include <netlink/genl/ctrl.h>
9#include <netlink/msg.h>
10#include <netlink/attr.h>
11
f408e01b 12#include "nl80211.h"
0f55e0b8
JB
13#include "iw.h"
14
7c37a24d
JB
15static int handle_name(struct nl80211_state *state,
16 struct nl_cb *cb,
0f55e0b8
JB
17 struct nl_msg *msg,
18 int argc, char **argv)
19{
0f55e0b8 20 if (argc != 1)
5e75fd04 21 return 1;
0f55e0b8
JB
22
23 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, *argv);
24
70391ccf 25 return 0;
0f55e0b8 26 nla_put_failure:
70391ccf 27 return -ENOBUFS;
0f55e0b8 28}
cea8fa1c
JB
29COMMAND(set, name, "<new name>", NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_name,
30 "Rename this wireless device.");
b822cda9 31
379f8397
JB
32static int handle_freqchan(struct nl_msg *msg, bool chan,
33 int argc, char **argv)
b822cda9 34{
e86b7e02 35 char *end;
b822cda9
JB
36 static const struct {
37 const char *name;
38 unsigned int val;
39 } htmap[] = {
68632dc7
JB
40 { .name = "HT20", .val = NL80211_CHAN_HT20, },
41 { .name = "HT40+", .val = NL80211_CHAN_HT40PLUS, },
42 { .name = "HT40-", .val = NL80211_CHAN_HT40MINUS, },
b822cda9 43 };
68632dc7 44 unsigned int htval = NL80211_CHAN_NO_HT;
b822cda9
JB
45 unsigned int freq;
46 int i;
47
48 if (!argc || argc > 2)
49 return 1;
50
51 if (argc == 2) {
7d736016 52 for (i = 0; i < ARRAY_SIZE(htmap); i++) {
b822cda9
JB
53 if (strcasecmp(htmap[i].name, argv[1]) == 0) {
54 htval = htmap[i].val;
55 break;
56 }
57 }
68632dc7 58 if (htval == NL80211_CHAN_NO_HT)
b822cda9
JB
59 return 1;
60 }
61
e86b7e02
JB
62 if (!*argv[0])
63 return 1;
64 freq = strtoul(argv[0], &end, 10);
65 if (*end)
66 return 1;
67
379f8397
JB
68 if (chan)
69 freq = ieee80211_channel_to_frequency(freq);
b822cda9
JB
70
71 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
68632dc7 72 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, htval);
b822cda9
JB
73
74 return 0;
75 nla_put_failure:
76 return -ENOBUFS;
77}
379f8397 78
7c37a24d
JB
79static int handle_freq(struct nl80211_state *state,
80 struct nl_cb *cb, struct nl_msg *msg,
379f8397
JB
81 int argc, char **argv)
82{
83 return handle_freqchan(msg, false, argc, argv);
84}
b822cda9 85COMMAND(set, freq, "<freq> [HT20|HT40+|HT40-]",
00c448b2
JB
86 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_freq,
87 "Set frequency/channel the hardware is using, including HT\n"
88 "configuration.");
b822cda9 89COMMAND(set, freq, "<freq> [HT20|HT40+|HT40-]",
01ae06f9 90 NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_freq, NULL);
379f8397 91
7c37a24d
JB
92static int handle_chan(struct nl80211_state *state,
93 struct nl_cb *cb, struct nl_msg *msg,
379f8397
JB
94 int argc, char **argv)
95{
96 return handle_freqchan(msg, true, argc, argv);
97}
98COMMAND(set, channel, "<channel> [HT20|HT40+|HT40-]",
01ae06f9 99 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_chan, NULL);
379f8397 100COMMAND(set, channel, "<channel> [HT20|HT40+|HT40-]",
01ae06f9 101 NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_chan, NULL);
625aa4ae
JB
102
103static int handle_fragmentation(struct nl80211_state *state,
104 struct nl_cb *cb, struct nl_msg *msg,
105 int argc, char **argv)
106{
107 unsigned int frag;
108
109 if (argc != 1)
110 return 1;
111
112 if (strcmp("off", argv[0]) == 0)
113 frag = -1;
e86b7e02
JB
114 else {
115 char *end;
116
117 if (!*argv[0])
118 return 1;
119 frag = strtoul(argv[0], &end, 10);
120 if (*end != '\0')
121 return 1;
122 }
625aa4ae
JB
123
124 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, frag);
125
126 return 0;
127 nla_put_failure:
128 return -ENOBUFS;
129}
130COMMAND(set, frag, "<fragmentation threshold|off>",
131 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_fragmentation,
132 "Set fragmentation threshold.");
133
134static int handle_rts(struct nl80211_state *state,
135 struct nl_cb *cb, struct nl_msg *msg,
136 int argc, char **argv)
137{
138 unsigned int rts;
139
140 if (argc != 1)
141 return 1;
142
143 if (strcmp("off", argv[0]) == 0)
144 rts = -1;
e86b7e02
JB
145 else {
146 char *end;
147
148 if (!*argv[0])
149 return 1;
150 rts = strtoul(argv[0], &end, 10);
151 if (*end != '\0')
152 return 1;
153 }
625aa4ae
JB
154
155 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, rts);
156
157 return 0;
158 nla_put_failure:
159 return -ENOBUFS;
160}
161COMMAND(set, rts, "<rts threshold|off>",
162 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_rts,
163 "Set rts threshold.");
e960e066
JB
164
165static int handle_netns(struct nl80211_state *state,
166 struct nl_cb *cb,
167 struct nl_msg *msg,
168 int argc, char **argv)
169{
170 char *end;
171
172 if (argc != 1)
173 return 1;
174
e86b7e02
JB
175 if (!*argv[0])
176 return 1;
177
e960e066 178 NLA_PUT_U32(msg, NL80211_ATTR_PID,
c551449a 179 strtoul(argv[0], &end, 10));
e960e066
JB
180
181 if (*end != '\0')
182 return 1;
183
184 return 0;
185 nla_put_failure:
186 return -ENOBUFS;
187}
188COMMAND(set, netns, "<pid>",
189 NL80211_CMD_SET_WIPHY_NETNS, 0, CIB_PHY, handle_netns,
190 "Put this wireless device into a different network namespace");
b2f92dd0
LT
191
192static int handle_coverage(struct nl80211_state *state,
193 struct nl_cb *cb,
194 struct nl_msg *msg,
195 int argc, char **argv)
196{
e86b7e02 197 char *end;
b2f92dd0
LT
198 unsigned int coverage;
199
200 if (argc != 1)
201 return 1;
202
e86b7e02
JB
203 if (!*argv[0])
204 return 1;
205 coverage = strtoul(argv[0], &end, 10);
b2f92dd0
LT
206 if (coverage > 255)
207 return 1;
208
e86b7e02
JB
209 if (*end)
210 return 1;
211
b2f92dd0
LT
212 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, coverage);
213
214 return 0;
215 nla_put_failure:
216 return -ENOBUFS;
217}
218COMMAND(set, coverage, "<coverage class>",
219 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_coverage,
220 "Set coverage class (1 for every 3 usec of air propagation time).\n"
221 "Valid values: 0 - 255.");
222
223static int handle_distance(struct nl80211_state *state,
224 struct nl_cb *cb,
225 struct nl_msg *msg,
226 int argc, char **argv)
227{
e86b7e02 228 char *end;
b2f92dd0
LT
229 unsigned int distance, coverage;
230
231 if (argc != 1)
232 return 1;
233
e86b7e02
JB
234 if (!*argv[0])
235 return 1;
236
237 distance = strtoul(argv[0], &end, 10);
238
239 if (*end)
240 return 1;
b2f92dd0
LT
241
242 /*
243 * Divide double the distance by the speed of light in m/usec (300) to
244 * get round-trip time in microseconds and then divide the result by
245 * three to get coverage class as specified in IEEE 802.11-2007 table
246 * 7-27. Values are rounded upwards.
247 */
248 coverage = (distance + 449) / 450;
249 if (coverage > 255)
250 return 1;
251
252 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, coverage);
253
254 return 0;
255 nla_put_failure:
256 return -ENOBUFS;
257}
258COMMAND(set, distance, "<distance>",
259 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_distance,
260 "Set appropriate coverage class for given link distance in meters.\n"
261 "Valid values: 0 - 114750");
a0b1f574
JO
262
263static int handle_txpower(struct nl80211_state *state,
264 struct nl_cb *cb,
265 struct nl_msg *msg,
266 int argc, char **argv)
267{
268 enum nl80211_tx_power_setting type;
269 int mbm;
270
271 /* get the required args */
272 if (argc != 1 && argc != 2)
273 return 1;
274
275 if (!strcmp(argv[0], "auto"))
276 type = NL80211_TX_POWER_AUTOMATIC;
277 else if (!strcmp(argv[0], "fixed"))
278 type = NL80211_TX_POWER_FIXED;
279 else if (!strcmp(argv[0], "limit"))
280 type = NL80211_TX_POWER_LIMITED;
281 else {
282 printf("Invalid parameter: %s\n", argv[0]);
283 return 2;
284 }
285
286 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_TX_POWER_SETTING, type);
287
288 if (type != NL80211_TX_POWER_AUTOMATIC) {
18e05613 289 char *endptr;
a0b1f574
JO
290 if (argc != 2) {
291 printf("Missing TX power level argument.\n");
292 return 2;
293 }
294
18e05613 295 mbm = strtol(argv[1], &endptr, 10);
08ec4c6b 296 if (*endptr)
18e05613 297 return 2;
a0b1f574
JO
298 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL, mbm);
299 } else if (argc != 1)
300 return 1;
301
302 return 0;
303
304 nla_put_failure:
305 return -ENOBUFS;
306}
307COMMAND(set, txpower, "<auto|fixed|limit> [<tx power in mBm>]",
308 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_txpower,
309 "Specify transmit power level and setting type.");
310COMMAND(set, txpower, "<auto|fixed|limit> [<tx power in mBm>]",
311 NL80211_CMD_SET_WIPHY, 0, CIB_NETDEV, handle_txpower,
312 "Specify transmit power level and setting type.");
afce7986
BR
313
314static int handle_antenna(struct nl80211_state *state,
315 struct nl_cb *cb,
316 struct nl_msg *msg,
317 int argc, char **argv)
318{
319 char *end;
320 uint32_t tx_ant = 0, rx_ant = 0;
321
322 if (argc == 1 && strcmp(argv[0], "all") == 0) {
323 tx_ant = 0xffffffff;
324 rx_ant = 0xffffffff;
325 } else if (argc == 1) {
326 tx_ant = rx_ant = strtoul(argv[0], &end, 0);
327 if (*end)
328 return 1;
329 }
330 else if (argc == 2) {
331 tx_ant = strtoul(argv[0], &end, 0);
332 if (*end)
333 return 1;
334 rx_ant = strtoul(argv[1], &end, 0);
335 if (*end)
336 return 1;
337 } else
338 return 1;
339
340 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
341 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
342
343 return 0;
344
345 nla_put_failure:
346 return -ENOBUFS;
347}
348COMMAND(set, antenna, "<bitmap> | all | <tx bitmap> <rx bitmap>",
349 NL80211_CMD_SET_WIPHY, 0, CIB_PHY, handle_antenna,
350 "Set a bitmap of allowed antennas to use for TX and RX.\n"
351 "The driver may reject antenna configurations it cannot support.");